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3 years ago

1. (-3x2 + 14x - 11) + (16x2 - 19x+3)

Mathematics

2 answers:

bixtya [17]3 years ago

6 0

-3×2+14×-11+16×2-19×+3=144

gavmur [86]3 years ago

3 0

Answer:27x-14

Step-by-step explanation: Simplify the expression.

Hope this helps you out! ☺

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Answer:

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Step-by-step explanation:

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3 years ago

A large company claims that the average age of their employees is 32 years, with a standard deviation of 4 years. The average ag

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Given that average age of employees of a large company is Normal

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X:N(32,4)

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Prob that an employee, chosen at random, will be younger than 27 years.

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Let us convert x into Z

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3 years ago

Read 2 more answers

If the hypotenuse of a right triangle measures 15 cm and one of the legs measures 12 cm, what is the length of the other leg?

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Step-by-step explanation:

12 to the 2nd power=144

15 to the 2nd power =225

225-144=81

square root of 81 is 9

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3 years ago

From previous polls, it is believed that 66% of likely voters prefer the incumbent. A new poll of 500 likely voters will be cond

Vladimir79 [104]

Answer:

The mean and standard deviation of the number preferring the incumbent is mean = 330, standard deviation = 10.59.

Step-by-step explanation:

We are given that From previous polls, it is believed that 66% of likely voters prefer the incumbent.

A new poll of 500 likely voters will be conducted. In the new poll the proportion favoring the incumbent has not changed.

Let p = probability of voters preferring the incumbent = 66%

n = number of voters polled = 500

<u>So, the mean of the number preferring the incumbent is given by;</u>

Mean = $n \times p$ = $500 \times 0.66$

= 330 voters

<u>And, standard deviation of the number preferring the incumbent is given by;</u>

Variance = $n \times p\times (1-p)$

= $500 \times 0.66 \times (1-0.66)$

= 112.2

So, Standard deviation = $\sqrt{Variance}$

= $\sqrt{112.2}$ = 10.59

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2 years ago

A newspaper reporter wrote an article about a recent football game 8749 people attended the game but the reporter rounded the nu

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Answer:

your answer would be .

Step-by-step explanation:

8750

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3 years ago

1. (-3x2 + 14x - 11) + (16x2 - 19x+3)​

1. (-3x2 + 14x - 11) + (16x2 - 19x+3)